Hmm honestly speaking I think all of my lucid experiences were deliberate. I suppose that none of my lucid experiences would have ever happened without me intending it to happen. But I remember my first lucid dream very well. I was at school and met a friend from overseas who is not supposed to be at my school so I became lucid and was totally freaked out and hugged her, but before I was able to decide on what to do I lost control and woke up
What about your first experience?